@book{Lauth2016, author = {Lauth, Jakob}, title = {Physikalische Chemie, 3: Phasengleichgewichte}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-662-47571-3}, pages = {57 Seiten}, year = {2016}, language = {de} } @book{Lauth2016, author = {Lauth, Jakob}, title = {Physikalische Chemie, 2: Chemische Thermodynamik}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-662-47621-5}, pages = {77 Seiten}, year = {2016}, language = {de} } @book{Lauth2016, author = {Lauth, Jakob}, title = {Physikalische Chemie, 1: Grundlagen der Thermodynamik und Verhalten der Gase}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-662-47676-5}, pages = {57 Seiten}, year = {2016}, language = {de} } @book{LauthKowalczyk2016, author = {Lauth, Jakob and Kowalczyk, J{\"u}rgen}, title = {Einf{\"u}hrung in die Physik und Chemie der Grenzfl{\"a}chen und Kolloide}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-662-47018-3}, doi = {10.1007/978-3-662-47018-3}, pages = {Online-Ressource (XIX, 522 S., 341 Abb.)}, year = {2016}, language = {de} } @article{MolinnusSorichBartzetal.2016, author = {Molinnus, Denise and Sorich, Maren and Bartz, Alexander and Siegert, Petra and Willenberg, Holger S. and Lisdat, Fred and Poghossian, Arshak and Keusgen, Michael and Sch{\"o}ning, Michael Josef}, title = {Towards an adrenaline biosensor based on substrate recycling amplification in combination with an enzyme logic gate}, series = {Sensors and Actuators B: Chemical}, volume = {237}, journal = {Sensors and Actuators B: Chemical}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0925-4005}, doi = {10.1016/j.snb.2016.06.064}, pages = {190 -- 195}, year = {2016}, abstract = {An amperometric biosensor using a substrate recycling principle was realized for the detection of low adrenaline concentrations (1 nM) by measurements in phosphate buffer and Ringer's solution at pH 6.5 and pH 7.4, respectively. In proof-of-concept experiments, a Boolean logic-gate principle has been applied to develop a digital adrenaline biosensor based on an enzyme AND logic gate. The obtained results demonstrate that the developed digital biosensor is capable for a rapid qualitative determination of the presence/absence of adrenaline in a YES/NO statement. Such digital biosensor could be used in clinical diagnostics for the control of a correct insertion of a catheter in the adrenal veins during adrenal venous-sampling procedure.}, language = {en} } @article{GhoschBaierSchuetzetal.2016, author = {Ghosch, S. and Baier, M. and Sch{\"u}tz, J. and Schneider, Felix and Scherer, Ulrich W.}, title = {Analysis of electronic autoradiographs by mathematical post-processing}, series = {Radiation Effects and Defects in Solids: Incorporating plasma science and plasma technology}, volume = {171}, journal = {Radiation Effects and Defects in Solids: Incorporating plasma science and plasma technology}, number = {1-2}, publisher = {Taylor \& Francis}, address = {London}, issn = {1029-4953}, doi = {10.1080/10420150.2016.1155587}, pages = {161 -- 172}, year = {2016}, abstract = {Autoradiography is a well-established method of nuclear imaging. When different radionuclides are present simultaneously, additional processing is needed to distinguish distributions of radionuclides. In this work, a method is presented where aluminium absorbers of different thickness are used to produce images with different cut-off energies. By subtracting images pixel-by-pixel one can generate images representing certain ranges of β-particle energies. The method is applied to the measurement of irradiated reactor graphite samples containing several radionuclides to determine the spatial distribution of these radionuclides within pre-defined energy windows. The process was repeated under fixed parameters after thermal treatment of the samples. The greyscale images of the distribution after treatment were subtracted from the corresponding pre-treatment images. Significant changes in the intensity and distribution of radionuclides could be observed in some samples. Due to the thermal treatment parameters the most significant differences were observed in the ³H and ¹⁴C inventory and distribution.}, language = {en} } @book{LauthKowalczyk2015, author = {Lauth, Jakob and Kowalczyk, J{\"u}rgen}, title = {Thermodynamik : eine Einf{\"u}hrung}, publisher = {Springer Spektrum}, address = {Berlin}, isbn = {978-3-662-46228-7}, doi = {10.1007/978-3-662-46229-4}, pages = {XVIII, 380 S.: Ill., graph. Darst.}, year = {2015}, language = {de} } @article{PasteurTippkoetterKampeisetal.2014, author = {Pasteur, Aline and Tippk{\"o}tter, Nils and Kampeis, Percy and Ulber, Roland}, title = {Optimization of high gradient magnetic separation filter units for the purification of fermentation products}, series = {IEEE TRANSACTIONS ON MAGNETICS}, volume = {50}, journal = {IEEE TRANSACTIONS ON MAGNETICS}, number = {10}, publisher = {IEEE}, address = {New York, NY}, issn = {0018-9464}, doi = {10.1109/TMAG.2014.2325535}, pages = {Artikel 5000607}, year = {2014}, abstract = {High gradient magnetic separation (HGMS) has been established since the early 1970s. A more recent application of these systems is the use in bioprocesses. To integrate the HGMS in a fermentation process, it is necessary to optimize the separation matrix with regard to the magnetic separation characteristics and permeability of the non-magnetizable components of the fermentation broth. As part of the work presented here, a combined fluidic and magnetic force finite element model simulation was created using the software COMSOL Multiphysics and compared with separation experiments. Finally, as optimal lattice orientation of the separation matrix, a transversal rhombohedral arrangement was defined. The high suitability of the new filter matrix has been verified by separation experiments.}, language = {en} } @article{TippkoetterWollnySucketal.2014, author = {Tippk{\"o}tter, Nils and Wollny, Steffen and Suck, Kirstin and Sohling, Ulrich and Ruf, Friedrich and Ulber, Roland}, title = {Recycling of spent oil bleaching earth as source of glycerol for the anaerobic production of acetone, butanol, and ethanol with Clostridium diolis and lipolytic Clostridium lundense}, series = {Engineering in Life Sciences}, volume = {14}, journal = {Engineering in Life Sciences}, number = {4}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1618-2863}, doi = {10.1002/elsc.201300113}, pages = {425 -- 432}, year = {2014}, abstract = {A major part of edible oil is subjected to bleaching procedures, primarily with minerals applied as adsorbers. Their recycling is currently done either by regaining the oil via organic solvent extraction or by using the spent bleaching earth (SBE) as additive for animal feed, etc. As a new method, the reutilization of the by-product SBE for the microbiologic formation of acetone, butanol, and ethanol (ABE) is presented as proof-of-concept. The SBE was taken from a palm oil cleaning process. The recycling concept is based on the application of lipolytic clostridia strains. Due to considerably long fermentation times, co-fermentation with Candida rugosa and enzymatic hydrolyses of the bound oil with a subsequent clostridia fermentation are shown as alternative routes. Anaerobic fermentations under comparison of different clostridia strains were performed with glycerol media, enzymatically hydrolyzed palm oil and SBE. Solutes, side product compositions and productivities were quantified via HPLC. A successful production of ABE solutes from SBE has been done with a yield of 0.15 g butanol per gram of bound glycerol. Thus, the biotechnological recycling of the waste stream is possible in principle. Inhibition of the substrate suspension has been observed. A chromatographic ion-exchange of substrates increased the biomass concentration.}, language = {en} } @article{AlKaidyDuweHusteretal.2014, author = {Al-Kaidy, Huschyar and Duwe, Anna and Huster, Manuel and Muffler, Kai and Schlegel, Christin and Sieker, Tim and Stadtm{\"u}ller, Ralf and Tippk{\"o}tter, Nils and Ulber, Roland}, title = {Biotechnologie und Bioverfahrenstechnik - Vom ersten Ullmanns Artikel bis hin zu aktuellen Forschungsthemen}, series = {Chemie Ingenieur Technik}, volume = {86}, journal = {Chemie Ingenieur Technik}, number = {12}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {0009-286X}, doi = {10.1002/cite.201400083}, pages = {2215 -- 2225}, year = {2014}, abstract = {Biotechnologie und die mit ihr verbundenen technischen Prozesse pr{\"a}gen seit Jahrtausenden die Entwicklung der Menschheit. Ausgehend von empirischen Verfahren, insbesondere zur Herstellung von Lebensmitteln und t{\"a}glichen Gebrauchsg{\"u}tern, haben sich diese Disziplinen zu einem der innovativsten Zukunftsfelder entwickelt. Durch das immer detailliertere Verst{\"a}ndnis zellul{\"a}rer Vorg{\"a}nge k{\"o}nnen mittlerweile Produktionsst{\"a}mme gezielt optimiert werden. Im Zusammenspiel mit moderner Prozesstechnik k{\"o}nnen so eine Vielzahl von Bulk- und Feinchemikalien sowie Pharmazeutika effizient hergestellt werden. In diesem Artikel werden exemplarisch einige der aktuellen Trends vorgestellt.}, language = {de} }